ARM has 7 basic working modes User: non-privileged mode, most tasks are executed in this mode FIQ: this mode is entered when a high priority (fast) interrupt occurs IRQ: this mode is entered when a...
;Using AT89C2051 single-chip microcomputer, crystal oscillator 11.0592MHZ, communication rate 9600, using TTL serial port communication ; the receiving board is SB-JS1-L4 super regenerative latch type...
With the development of wireless radio frequency technology, short-range wireless communication technologies with significant advantages such as low cost, low energy consumption, low complexity and hi...
A medieval 300 micron sword on a Motorola/IBM PowerPC 750Hummingbird etched on HP PA-RISC 7000 microprocessorNCR Microelectronics Memory ICs on AircraftHP 64-bit combinational divider Focus II Math ch...
[size=4]Suppose you are assigned a task to design a signal processing system composed of DSP and analog devices such as DAC and ADC. The task will be very simple if you consider a few important factor...
Innolux, a panel manufacturer under Hon Hai, released its 2018 business report. Looking ahead to this year, Innolux said that in the face of the continuous expansion of production capacity of new pan...[Details]
Generally, the positive and negative poles of ordinary pin diodes can be judged by the length of the pins or the area of the piece inside the straw hat. Ordinary SMD diodes can be judged by the e...[Details]
On June 27, Korean media FNN reported that Samsung's Exynos 2500 chip cannot meet mass production requirements due to its low yield, so Samsung may cooperate with MediaTek to customize chips for th...[Details]
The negative oxygen ion monitoring system can be used to monitor the negative oxygen ion concentration in the environment for a long time. It is also important for us to judge the quality of the air ...[Details]
Here I use the CEPARK M64 AVR development board. The focus of this lesson is to learn how to use 74HC595 to drive digital tubes.
74HC595 is an 8-bit shift register and a memory with three-state outpu...[Details]
People engaged in power operations know that the development of industrial production and science and technology are inseparable from the automated control of PLC. PLC can be broadly understood as:...[Details]
The production cost of high-speed piezoelectric actuators has become increasingly cheaper over the past 15 years, so more and more application designs tend to use high-speed piezoelectric actuators. ...[Details]
Introduction: A low-value resistance meter with a range from 0.001ohm to 1.999ohm. Ordinary multimeters cannot measure such small resistances. The circuit uses two independent power supplies, one for...[Details]
OTA stands for "Over-The-Air" and is an air download technology that was widely used in the mobile phone industry in the early days, ending the complicated operation of connecting to a computer to ...[Details]
Recently, Fuman Electronics stated in an institutional survey that the areas the company currently pays more attention to are: one is the fast charging field; the other is Mini LED, that is, the fiel...[Details]
On October 9th local time, the Royal Swedish Academy of Sciences awarded the 2019 Nobel Prize in Chemistry to 97-year-old John B. Goodenough, 77-year-old M. Stanley Whittingham, and 71-year-old Akira...[Details]
The simulation schematic is as follows Basic functions of timer alarm 1. Basic functions of the timer alarm: Use a 3-digit seven-segment display to show the timer and remaining time (in sec...[Details]
First, let’s think about a question: is our world digital or analog? Of course it is analog, all quantities change continuously within a certain range. In order to describe these quantit...[Details]
Reset AVR When resetting, all I/O registers are reset to their initial values and the program starts executing from the reset vector. For ATmega168, the reset vector instruction must be an absolu...[Details]
Microcontroller MCU
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